Viessmann Vitotronic 100 Installation And Service Instructions Manual page 31

Group 1 "General"
Coding
Coding in the delivered condition
System design
00:1 One heating circuit without mixer
(heating circuit 1), without DHW
heating
Boiler circuit pump function
51:0 Only if a buffer temperature sensor
is connected:
Boiler circuit pump runs perma-
nently.
Set flow temperature for external demand
9b:70 Set minimum boiler water tempera-
ture during external demand 70 °C
Group 2 "Boiler"
Coding
Coding in the delivered condition
Burner type
02:0 1-stage burner
Gas/oil operation
03:0 Never adjust
Maximum boiler water temperature limit
06:75 Set to 75 °C.
Note
The code has no effect during
DHW heating demand.
Flue gas monitor
1F:0 With flue gas temperature sensor:
Flue gas temperature is not moni-
tored for burner service indication
Burner service hours run
21:0 No service interval (hours run) se-
lected.
Possible change
00:2 One heating circuit without mixer
(heating circuit 1), with DHW heat-
ing; automatic recognition.
51:1 Never adjust
51:2 When there is demand, the boiler
circuit pump only starts if the burner
is operational.
The burner is started and stopped
via the buffer temperature sensor.
Note
The boiler circuit pump runs on for
approx. 5 minutes after the burner
has switched off.
9b:0 Set value for external demand ad-
to justable from 0 to 127 °C (limited by
9b:127 boiler-specific parameters)
Possible change
02:1 2-stage burner
06:20 Adjustable from 20 to 127 °C.
to
06:127
1F:1 If the limit for the flue gas tempera-
to ture is exceeded,
1F:250 °C
21:1 The number of hours the burner has
to run before it should be serviced is
21:100 adjustable from 100 to 10,000 h
1 step
Coding level 1
is displayed.
≙
100 h
31